Wrench.



L. c. B'ONELLI.

wmcn. APPLICATION FILED MAR. 53, I917.

1,258,526. Patanted Mar. 5,191&

2 SHEETS-SHEET I.

IINVENTOR WITNESSES L. C. BONELLI.

WRENCH.

APPLICATION FILED MAR. 19. 1911.

1,258,526. Patented Mar. 5,1918. I

2 SHEETS-SHEET 2.

I p 7 INVENTOR WITNESSES H I fl UNTTED STATES PATENT @FFTGE.

LIBORIO C. BONELLI, OF SAN ANTONIO, TEXAS.

WRENCH.

To all whom it may concern:

Be it known that I, Lmonro C. BONELLI, a citizen of Italy, residing at San Antonio, in the county of Bexar and State of Texas, have invented new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to wrenches.

The object of the present invention is to provide a wrench which is capable of rapid adjustment, novel means being provided for permitting the movable jaw to automatically adjust itself and when so adjusted may be quickly and securely locked against movement.

Another object of the invention is to provide a wrench with jaws capable of being manually opened, but when released one of said jaws will be automatically moved to close the same, means being carried by the movable jaw for adapting said wrench to either use.

iVith the above and other objects in view, the invention consists in the following novel combination and arrangement of parts hereinafter more particularly described, illustrated in the accompanying drawings and pointed out in the appended claims.

in the drawings Figure 1 is a perspective view of a wrench constructed in accordance with the invention;

Fig. 2 is a longitudinal sectional view of the same;

Fig. 3 is a transverse sectional view taken on the line 3- -3 of Fig. 1;

Fig. 4 is a perspective view of the stationary jaw and its shank;

Fig. 5 is a perspective view of the pivoted locking member and its bearing, the parts being shown separated;

Fig. 6 is a detailed perspective view of the movable jaw and the adjustable pipe block, the parts being shown separated;

Fig. 7 is a detailed sectional view taken through the end of the movable jaw and illustrating the manner of adjusting the said block for permitting the use of the invention as a pipe wrench;

Fig. 8 is a fragmentary sectional view through the movable jaw of the wrench;

Fig. 9 is a perspective view of the pivot member for the adjustable pipe block.

Referring to the drawings in detail, the wrench comprises a stationary jaw 10, which is carried by a shank 11, the said shank be- Specification of Letters Patent.

Patented Mar. 5, 1918.

Application filed March 9, 1917. Serial No. 153,690.

ing reduced as at 12 for insertion within a handle or hand grip 13. The end of this portion 12 is further reduced and formed as at 13 for the reception of a nut 1 by means of which the handle is secured to the shank. Movable over the shank 11 is a jaw 15, this jaw and the previously mentioned parts being up to the present description constructed in the usual manner.

The invention provides novel means for operating the jaw 15, the said means including a spiral rod 16 which is engaged within a threaded opening 17 formed in the jaw 15, the opposite end of this rod being swiveled as at 18 within a collar 19 carried by the shank 11. corrugated collar or flange 20, by means of which it may be rotated to move the jaw 15.

In order to lock this rod 16 and consequently the jaw 15 against movement, there is provided a latch 21, this latch being of hollow rectangular formation as shown at 2:2 in Fig. 5, in order to permit of its being mounted upon the shank 11. One end of this latch is rounded as at 23, this rounded end being seated as at 24: within a bifurcated bearing 25 carried by the collar 19. Carried by the latch 21 and extending through the bifurcated portion of the bearing 25 is a finger piece 26, by means of which the said late-h may be rocked upon its hearing. The opposite end of the latch is formed with a corrugated engaging portion 27, which is adapted to contact with the flange 20 to prevent rotative movement of the rod 16. Lying within the open portion 522 of the latch is a flat spring 28, which is mounted upon the shank 11 in a manner to hold the engaging portion 27 into contact with the flange 20, so that when it is desired to operate the wrench it is necessary to rock the latch upon its bearing by means of the finger piece 26 and disengage the same from the flange 20. lVhen this is done the jaw 15 may be moved in either direction.

In order to adjust the jaws quickly to the work after the same have been opened, there is provided within the opening 17 of the jaw 15 a coiled spring 9.9, the spring being seated within the opening and engaging the upper end of the rod 16 so that when the latch 21 is disengaged from the flange 20 the action of this spring will cause the automatic and rapid movement of the jaw 15 toward the jaw 10.

In addition to the features above do- The rod 16 has secured thereto a scribed the wrench is capable of being converted for use as a pipe wrench. In order to accomplish this the jaw 15 is formed with a seat 30, which is provided with a curved bottom 31 and within this seat there is provided an adjustable pipe block 32. The block 32 is slotted at one end as at 33 and passing through this slot and secured within the jaw 15 is an end 34, which serves as a pivot to the block 32. The opposite end of the block 32 is similarly slotted as at 35 and adapted to operate in this slot is an eccentrically mounted pin 36, this pin being mounted in a wall 15 as shown at 37 in order to permit of its eccentric movement.

It will be seen that by operating the pin 36 the block 32, which is provided with a corrugated surface 38, will be caused to rise above the connecting plane of the jaw 15 and will then be in a position for engagement when it is desired to use the wrench upon pipes. A further movement of the pin 36 will quickly convert the wrench back for use as an ordinary monkey Wrench.

Having described the invention, what is claimed, is;

1. In combination with a wrench includinga movable jaw on the shank of a stationary jaw, a screw between the handle of the wrench and the movablej aw, for actuating the latter, and a peripherally roughened turning member for the screw, of locking means for said turning member, including a yoke straddling the shank of the stationthe same on the shank, said screw having an annular turning member provided with a roughened periphery, and said handle having its'inner end provided with a bifurcated bearing member, of locking means for the screw, comprising a yoke, arranged on the shank of the stationary jaw and having one of its ends rounded and received in the bifurcated bearing member, a finger piece on said end of the yoke, the opposite end ofthe yoke having a roughened face designed to engage with the roughened periphery of the screw turning member, and a fiat spring carried by the shank and exerting a pressure against the inner face of the last mentioned end of the yoke, whereby to hold the said yoke in engagement with the turning member of the screw, or out of such engagement. In testnnony whereof I affix my slgnature.

LIBORIO o. BONELLI.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. U. 

